I recently googled for ways to use a webcam as a baby monitor and came up with some very innovative posts:
Some links using a webcam coupled with a raspberry pi:
Another option is to just get a wi-fi webcam:
e.d. Dropcam has a nice webcam here: amzn.to/1iRsSXS But this webcam is expensive for $148.
Another interesting post got my eye:
Brock Thompson has written a couple of posts detailing the installation steps and method to setup a Foscam IP camera for baby monitoring. The best thing about this setup is that the camera is available for $62. http://amzn.to/1mbr6Bt One of the main disadvantages of the Foscam camera is the security vulnerability. Brock has a follow-up post regarding this at http://www.brockthompson.com/blog/3-ways-protect-foscam-hackers